Question: in a container solid scandium in equilibrium with its vapour at1690K shows a weight loss of 10.5 mg in 49.5 min through a circular hole

in a container solid scandium in equilibrium with its vapour at1690K shows a weight loss of 10.5 mg in 49.5 min through a circular hole of diameter 0.18cm. Find vapour pressure of Sc at 1690K in torr

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